May weather forecastCairns, Australia
May
Weather in May
May demonstrates a significant drop in temperature continuing till winter. The climate in Cairns during May is characterised by dry and sunny conditions with a remarkable decline in sea temperature from 27.8°C (82°F) to 26.2°C (79.2°F). A less humid atmosphere starts to settle in the city, therefore the weather allows for attractive tourism activities. The Great Barrier Reef showcases mesmerising vistas under the May sun. The tropical landscape begins to prepare itself for the winter.Temperature
The transition into May in Cairns reveals an average high-temperature of a still moderately hot 24.9°C (76.8°F), mirroring a close resemblance to April. During May, nights in Cairns cool slightly to an average low of 20.7°C (69.3°F).Humidity
The average relative humidity in May in Cairns is 79%.Rainfall
In Cairns, in May, it is raining for 13.8 days, with typically 27mm (1.06") of accumulated precipitation. In Cairns, during the entire year, the rain falls for 167.3 days and collects up to 652mm (25.67") of precipitation.Sea temperature
In Cairns, Australia, the average seawater temperature in May is 26.2°C (79.2°F).Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.
Daylight
In May, the average length of the day is 11h and 20min.On the first day of May in Cairns, sunrise is at 6:29 am and sunset at 5:58 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 5:50 pm AEST.
Sunshine
In Cairns, Australia, the average sunshine in May is 6h.UV index
The average daily maximum UV index in May in Cairns is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 6 in May suggests the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cairns, Australia
- Average high temperature in May: 24.9°C
The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is July (23.2°C).
- Average low temperature in May: 20.7°C
The months with the highest average low temperature are January and February (24.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).
Average pressure in May
Cairns, Australia
- Average pressure in May: 1015mbar
The month with the highest atmospheric pressure is July (1016.8mbar).
The month with the lowest atmospheric pressure is January (1007.6mbar).
Average wind speed in May
Cairns, Australia
- Average wind speed in May: 17.2km/h
The windiest month (with the highest average wind speed) is May (17.2km/h).
The calmest month (with the lowest average wind speed) is February (11.2km/h).
Average humidity in May
Cairns, Australia
- Average humidity in May: 79%
The month with the highest relative humidity is March (81%).
The months with the lowest relative humidity are September and October (74%).
Average rainfall in May
Cairns, Australia
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is January (162mm).
The driest month (with the least rainfall) is September (9mm).
Average rainfall days in May
Cairns, Australia
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is January (22.4 days).
The month with the least rainy days is September (7.2 days).
Average sea temperature in May
Cairns, Australia
- Average sea temperature in May: 26.2°C
The best month for swimming (with the highest average sea temperature) is January (29.5°C).
The coldest month (with the lowest average sea temperature) is July (23.8°C).
Average daylight in May /
Average sunshine in May
Cairns, Australia
- Average daylight in May: 11h and 18min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in May: 6h and 0min
The months with the most sunshine are October and November (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in May
Cairns, Australia
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in May
Cairns, Australia
- Average UV index in May: 6
The months with the highest UV index are January, February and November (UV index 7).
The month with the lowest UV index is July (UV index 5).
Average cloud cover in May
Cairns, Australia
- Average cloud cover in May: 44
The months with the most cloud cover are January and March (Cloud cover 45).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in May
Cairns, Australia
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
